Here’s an example of what was a valve and shower head only. We replaced the valve with the moen positemp and align trim. Theme we added this annex rail that connects to where the shower head outlet was. It may look complicated but it’s EXTREMELY simple  EFFICIENT. Best bang for your buck. We installed the Kohler awaken 2.0gpm hand shower with multispray settings  5 spray pivotal shower head. 

VALVE TRIM IS SLEEK  CLEAN. Functions smoothly and beautiful.